To protect most of the electrical equipment handling low power, the types of relays used are thermocouple, electronic and bimetallic.
Description : How many types of types of relays are there?
Description : IDMT relays are used to protect the transformer against : (A) Internal short -circuits (B) Open circuits (C) External short circuits (D) Oil leakage
Answer : IDMT relays are used to protect the transformer against : External short circuits
Answer : Thermal overload relays are used to protect the motor against overcurrent due to heavy loads.
Answer : Protective relays are devices that detect abnormal conditions in electrical circuits by measuring constantly the electrical quantities which differ during normal and abnormal conditions.
Answer : MOSFET have high current losses due to High on state resistance. Hence MOSFET is used for low power applications.